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ChemSusChem. 2014 Jun;7(6):1618-22. doi: 10.1002/cssc.201400152. Epub 2014 Apr 2.

Hollow melon-seed-shaped lithium iron phosphate micro- and sub-micrometer plates for lithium-ion batteries.

Author information

1
Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore, 138669 (Singapore).

Abstract

Melon-seed-shaped LiFePO4 hollow micro- and sub-micrometer plates have been synthesized via a polyol-assisted hydrothermal method. The as-prepared LiFePO4 hollow materials were new with regard to their single-crystalline shells with large ac surfaces. Based on the detailed analysis of time-dependent studies, a possible growth mechanism was proposed involving nucleation, anisotropic growth, selective etching, and reversed recrystallization. The effects of polyol concentration, reaction temperature, and feeding sequence of precursors on the growth of LiFePO4 materials were investigated. The electrochemical properties of as-prepared LiFePO4 hollow materials were examined as cathode materials.

KEYWORDS:

LiFePO4; crystal growth; electrochemistry; hollow nanostructures; lithium-ion batteries

PMID:
24700813
DOI:
10.1002/cssc.201400152
[Indexed for MEDLINE]
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